mirror of https://github.com/pret/pokecrystal.git
98 lines
2.0 KiB
NASM
98 lines
2.0 KiB
NASM
_GiveOddEgg:
|
|
; Figure out which egg to give.
|
|
|
|
; Compare a random word to
|
|
; probabilities out of 0xffff.
|
|
call Random
|
|
ld hl, OddEggProbabilities
|
|
ld c, 0
|
|
ld b, c
|
|
.loop
|
|
ld a, [hli]
|
|
ld e, a
|
|
ld a, [hli]
|
|
ld d, a
|
|
|
|
; Break on $ffff.
|
|
ld a, d
|
|
cp HIGH($ffff)
|
|
jr nz, .not_done
|
|
ld a, e
|
|
cp LOW($ffff)
|
|
jr z, .done
|
|
.not_done
|
|
|
|
; Break when [hRandom] <= de.
|
|
ldh a, [hRandom + 1]
|
|
cp d
|
|
jr c, .done
|
|
jr z, .ok
|
|
jr .next
|
|
.ok
|
|
ldh a, [hRandom + 0]
|
|
cp e
|
|
jr c, .done
|
|
jr z, .done
|
|
.next
|
|
inc bc
|
|
jr .loop
|
|
.done
|
|
|
|
ld hl, OddEggs
|
|
ld a, NICKNAMED_MON_STRUCT_LENGTH
|
|
call AddNTimes
|
|
|
|
; Writes to wOddEgg, wOddEggName, and wOddEggOTName,
|
|
; even though OddEggs does not have data for wOddEggOTName
|
|
ld de, wOddEgg
|
|
ld bc, NICKNAMED_MON_STRUCT_LENGTH + NAME_LENGTH
|
|
call CopyBytes
|
|
|
|
ld a, EGG_TICKET
|
|
ld [wCurItem], a
|
|
ld a, 1
|
|
ld [wItemQuantityChangeBuffer], a
|
|
ld a, -1
|
|
ld [wCurItemQuantity], a
|
|
ld hl, wNumItems
|
|
call TossItem
|
|
|
|
; load species in wcd2a
|
|
ld a, EGG
|
|
ld [wMobileMonSpeciesBuffer], a
|
|
|
|
; load pointer to (wMobileMonSpeciesBuffer - 1) in wMobileMonSpeciesPointerBuffer
|
|
ld a, LOW(wMobileMonSpeciesBuffer - 1)
|
|
ld [wMobileMonSpeciesPointerBuffer], a
|
|
ld a, HIGH(wMobileMonSpeciesBuffer - 1)
|
|
ld [wMobileMonSpeciesPointerBuffer + 1], a
|
|
; load pointer to wOddEgg in wMobileMonStructurePointerBuffer
|
|
ld a, LOW(wOddEgg)
|
|
ld [wMobileMonStructurePointerBuffer], a
|
|
ld a, HIGH(wOddEgg)
|
|
ld [wMobileMonStructurePointerBuffer + 1], a
|
|
|
|
; load Odd Egg Name in wTempOddEggNickname
|
|
ld hl, .Odd
|
|
ld de, wTempOddEggNickname
|
|
ld bc, MON_NAME_LENGTH
|
|
call CopyBytes
|
|
|
|
; load pointer to wTempOddEggNickname in wMobileMonOTNamePointerBuffer
|
|
ld a, LOW(wTempOddEggNickname)
|
|
ld [wMobileMonOTNamePointerBuffer], a
|
|
ld a, HIGH(wTempOddEggNickname)
|
|
ld [wMobileMonOTNamePointerBuffer + 1], a
|
|
; load pointer to wOddEggName in wMobileMonNicknamePointerBuffer
|
|
ld a, LOW(wOddEggName)
|
|
ld [wMobileMonNicknamePointerBuffer], a
|
|
ld a, HIGH(wOddEggName)
|
|
ld [wMobileMonNicknamePointerBuffer + 1], a
|
|
farcall AddMobileMonToParty
|
|
ret
|
|
|
|
.Odd:
|
|
db "ODD@@@@@@@@@"
|
|
|
|
INCLUDE "data/events/odd_eggs.asm"
|